W. Zudilin,
Irrationality of values of zeta-function,
Contemporary research in mathematics and mechanics,
Proceedings of the XXIII Conference of Young Scientists
of the Department of Mechanics and Mathematics
(Moscow State University, April 9--14, 2001),
Publ. Dept. Mech. Math. MSU, Moscow (2001), Part 2, 127--135
(E-print math.NT/0104249)